[newrotik]

Have had to do lots of technical / latex-y drawings in the past as academic, and found Ipe [0] to be incredibly useful.

It is very minimalistic and easy to use. The images produced are simple to embed in latex documents, and they fit the style/font of the rest of the document. I think this tool should be a lot more popular than it is.

[0] https://en.wikipedia.org/wiki/Ipe_(software) -- using the wikipedia link since the official site doesn't have many screenshots